rotating cube

1 files changed, 95 insertions, 0 deletions

diff --git a/src/sdl.zig b/src/sdl.zig
new file mode 100644
index 0000000..d9828af
--- /dev/null
+++ b/src/sdl.zig
@@ -0,0 +1,95 @@
+const std = @import("std");
+const sdl = @cImport(@cInclude("SDL2/SDL.h"));
+
+pub const instance = struct {
+    renderer: ?*sdl.SDL_Renderer,
+    window: ?*sdl.SDL_Window,
+};
+
+pub fn init() instance {
+    _ = sdl.SDL_Init(sdl.SDL_INIT_VIDEO);
+    var window = sdl.SDL_CreateWindow(
+        "main",
+        sdl.SDL_WINDOWPOS_UNDEFINED,
+        sdl.SDL_WINDOWPOS_UNDEFINED,
+        500,
+        500,
+        sdl.SDL_WINDOW_SHOWN,
+    );
+
+    var renderer = sdl.SDL_CreateRenderer(
+        window,
+        -1,
+        sdl.SDL_RENDERER_ACCELERATED,
+    );
+
+    return instance{
+        .window = window,
+        .renderer = renderer,
+    };
+}
+
+pub fn draw_line(i: instance, p1: []f32, p2: []f32) void {
+    _ = sdl.SDL_RenderDrawLineF(i.renderer, p1[0], p1[1], p2[0], p2[1]);
+}
+
+pub fn delay(t: u32) void {
+    sdl.SDL_Delay(t);
+}
+
+pub fn draw_color(i: instance, r: u8, g: u8, b: u8, a: u8) void {
+    _ = sdl.SDL_SetRenderDrawColor(i.renderer, r, g, b, a);
+}
+
+pub fn clear(i: instance) void {
+    _ = sdl.SDL_RenderClear(i.renderer);
+}
+
+pub fn present(i: instance) void {
+    sdl.SDL_RenderPresent(i.renderer);
+}
+
+pub fn get_event() event {
+    var e: sdl.SDL_Event = undefined;
+    _ = sdl.SDL_PollEvent(&e);
+
+    var key = keys.none;
+    var mode = modes.mouse;
+    //var key = @intToEnum(keys, e.key.keysym.sym);
+    //var mode = @intToEnum(modes, e.type);
+
+    var r: event = event{
+        .key = key,
+        .mode = mode,
+    };
+    return r;
+}
+
+const event = struct {
+    key: keys,
+    mode: modes,
+};
+
+pub const modes = enum(u32) {
+    mouse = sdl.SDL_MOUSEMOTION,
+    window = sdl.SDL_WINDOWEVENT,
+    quit = sdl.SDL_QUIT,
+    key = sdl.SDL_KEYDOWN,
+};
+
+pub fn quit(i: instance) void {
+    sdl.SDL_DestroyRenderer(i.renderer);
+    sdl.SDL_DestroyWindow(i.window);
+    sdl.SDL_Quit();
+}
+
+pub const keys = enum(i32) {
+    none = sdl.SDLK_UNKNOWN,
+    w = sdl.SDLK_w,
+    s = sdl.SDLK_s,
+    q = sdl.SDLK_q,
+    up = sdl.SDLK_UP,
+    down = sdl.SDLK_DOWN,
+    left = sdl.SDLK_LEFT,
+    right = sdl.SDLK_RIGHT,
+};